Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855390 | Process for preparing polyesterimide from bis(hydroxyphthalimide) | Shigekuni Sasaki | 1989-08-08 |
| 4808676 | Polyetherimide/epoxyimide resin composition | Shiro Nishi, Shigekuni Sasaki | 1989-02-28 |